<template>
    <div class="son">
     <h3>我是son组件(孙) {{ car.name }} -- {{ car.price }}</h3>
    </div>
   </template>
   
   <script>
   import{inject} from 'vue'
     export default{
       name:'son',
       setup(){
       let car = inject('car');
       return {car}
       }
     }
   </script>
   
   <style>
     .son{
       background-color: orange;
       padding: 10px;
     }
   </style>